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POHow to run a function for each element in a list on a different thread sequentially and update the (passive) view after each function has run?
 

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  1. POHow to run a function for each element in a list on a different thread sequentially and update the (passive) view after each function has run?
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    <p>I have a WinForm <a href="http://martinfowler.com/eaaDev/PassiveScreen.html" rel="nofollow noreferrer">«Passive View»</a> and a «Controller» where the controller is running a long running function for each element in a list.</p> <p>I want the following:</p> <ul> <li>The functions shall run sequentially</li> <li>The view mustn't freeze while looping the list and running the functions</li> <li>After each function has run, the view shall be updated with the result of the run</li> </ul> <p>The (single-threaded) code looks like this as of now:</p> <pre><code>View.DateSpan.Workdays.ForEach( d =&gt; { var processRunInfo = _processRunner.Run( configFile, d ); UdateViewFrom( processRunInfo ); } ); </code></pre> <p>The code above "works" but causes the view to freeze since it uses the very same thread, and it updates the view batch-wise.</p> <p><code>Workdays</code> is an <code>IEnumerable&lt;DateTime&gt;</code>, and <code>ForEach</code> does what <code>ForEach</code> of <code>List&lt;T&gt;</code> does but is an extension method from <a href="http://code.google.com/p/morelinq/" rel="nofollow noreferrer">MoreLINQ</a>.</p> <p><code>_processRunner.Run</code> runs an external command line application with the arguments supplied.</p>
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    1. USMartin R-L
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    1. COis this winforms?
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      1. POHow to run a function for each element in a list on a different thread sequentially and update the (passive) view after each function has run?
      1. USDave Archer
    2. COYes, WinForm (stated in the first sentence of the question).
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      1. POHow to run a function for each element in a list on a different thread sequentially and update the (passive) view after each function has run?
      1. USMartin R-L
 

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